WO2017132820A1 - Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique - Google Patents

Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique Download PDF

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Publication number
WO2017132820A1
WO2017132820A1 PCT/CN2016/073152 CN2016073152W WO2017132820A1 WO 2017132820 A1 WO2017132820 A1 WO 2017132820A1 CN 2016073152 W CN2016073152 W CN 2016073152W WO 2017132820 A1 WO2017132820 A1 WO 2017132820A1
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Prior art keywords
waveguide
light
polarized light
polarization
polarized
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Ceased
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PCT/CN2016/073152
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English (en)
Chinese (zh)
Inventor
王涛
刘宁
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2016/073152 priority Critical patent/WO2017132820A1/fr
Priority to CN201680079095.8A priority patent/CN108476065B/zh
Priority to EP16888646.3A priority patent/EP3402094B1/fr
Publication of WO2017132820A1 publication Critical patent/WO2017132820A1/fr
Priority to US16/051,889 priority patent/US10841012B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/06—Polarisation multiplex systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/1042—Optical microcavities, e.g. cavity dimensions comparable to the wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
    • H01S5/142—External cavity lasers using a wavelength selective device, e.g. a grating or etalon which comprises an additional resonator

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a light reflection multiplexing chip, a laser emitting chip, and an optical transmitter.
  • WDM Dense Wavelength Division Multiplexing
  • BBU Building Base band Unit
  • OTN optical Transport Network
  • CPRI Common Public Radio Interface
  • RRU Radio Remote Unit
  • MIMO Multiple-Input Multiple-Output
  • each optical module in each RRU requires a laser of a different wavelength.
  • This configuration method causes a series of problems: for example, because the optical modules assigned to each RRU are different, The common public interface CPRI has a one-to-one correspondence with the port number of each RRU, and the operator also needs to stock optical modules of different wavelengths.
  • the industry has proposed the concept of a colorless WDM light source.
  • the RRU transceiver module is wavelength-independent, and the laser emission wavelength of the RUU transceiver module can automatically adapt to the wavelength of the connected array waveguide grating (English name: Arrayed Waveguide Grating, English abbreviation: AWG), etc. Plug and play can be used on ports such as AWG.
  • the self-injection locking technology is a recently proposed solution for implementing a colorless WDM optical transmitter.
  • a Fabry-Perot semiconductor laser (English name: Fabry Perot-Laser Diode, English abbreviation: FP-LD) emits light of multiple longitudinal modes (wavelength) and then re-injects the FP-LD to achieve specific wavelength locking.
  • FP-LD Fabry Perot-Laser Diode
  • the invention provides a light reflection multiplexing chip, a laser emitting chip and an optical transmitter, which are used for solving the problem of high cost of the colorless WDM optical transmitter based on the self-injection locking technology.
  • the first aspect of the embodiments of the present invention provides a light reflection multiplexing chip, including a combiner, a second external port, N third external ports, and N micro ring resonators.
  • N polarization splitting rotators, N first branch waveguides, and N second branch waveguides wherein N is a positive integer and greater than or equal to 1, wherein N polarization splitting rotators and N firsts
  • the branching waveguides are in one-to-one correspondence
  • the N polarization beam splitting rotators are in one-to-one correspondence with the N second branching waveguides
  • the N polarization beam splitting rotators are in one-to-one correspondence with the N third external ports
  • the N polarization beam splitting rotators are One of the N microring resonators is connected
  • the combiner is respectively connected to the N first branch waveguides, and is connected to the N second branch waveguides and connected to the second external port
  • the N polarization splitting rotators are Each polarization splitting rotator is
  • the polarization beam splitting rotator is configured to receive polarized light, and the polarized light is transmitted to the corresponding first and second branch waveguides after passing through the polarization beam splitting rotator.
  • a microring resonator that performs wavelength selection on light transmitted to the corresponding first branch waveguide and the corresponding second branch waveguide, and outputs a part of the selected single mode light to the second external port through the combiner, Passing another portion of the light as reflected polarized light back to the polarization beam splitting rotator, which polarizes the reflected polarized light transmitted back by the corresponding microring resonator and passes the coupled light through the corresponding third External port output.
  • each of the N polarization splitting rotators includes a fifth waveguide and a sixth waveguide, wherein each polarization splitting rotator corresponds to a fifth The waveguide is connected to the corresponding first branch waveguide, and the sixth waveguide corresponding to each polarization splitting rotator is connected to the corresponding second branch waveguide;
  • a polarization beam splitting rotator specifically for receiving polarized light from a corresponding third external port through a corresponding fifth waveguide, the polarized light being decomposed into a fourth having a first polarization direction after passing through a corresponding polarization beam splitting rotator Polarized light and fifth polarized light having a second polarization direction, wherein the first polarization direction and the second polarization direction are perpendicular to each other, and the fifth polarized light is transmitted to the corresponding first through the sixth waveguide
  • the sixth polarized light having the first polarization direction is converted, and then the micro-ring resonator performs wavelength selection on the sixth polarized light in the second branch waveguide, and the selected one of the light passes through the multiplexed wave
  • the device is outputted from the second external port, and the other portion of the light is transmitted to the corresponding polarization beam splitting rotator as the first polarization reflected light through the corresponding first branch waveguide and the corresponding fifth wave
  • the micro-ring resonator also performs wavelength selection on the fourth polarized light in the first branch waveguide, and the selected one light is output from the second external port through the combiner output, and the other portion passes the corresponding second.
  • the branch waveguide and the corresponding sixth waveguide are transmitted to the corresponding polarization splitting rotator and coupled to the corresponding fifth waveguide to be converted into the second polarized reflected light having the second polarization direction, and finally the first polarized reflected light and the second The polarized reflected light is output from the corresponding third external port through the corresponding fifth waveguide.
  • the fourth polarized light and the sixth polarized light are transverse electric fields (English full name: transverse electric mode, English abbreviation: TE), and the fifth polarized light is a transverse magnetic field ( English full name: transverse magnetic mode, English abbreviation: TM) mode polarized light, second polarized reflected light is TM mode polarized light.
  • a second aspect of the embodiments of the present invention provides a laser emitting chip, comprising: a bidirectional emitting laser, a polarization beam splitting rotator, and a first external port, wherein the bidirectional emitting laser is connected to the polarization beam splitting rotator, and the polarization component is The beam rotator is coupled to the first external port.
  • the bidirectional light emitting laser is configured to emit polarized light
  • the polarization splitting rotator is configured to polarizely couple the polarized light emitted by the two-way emitting laser and output the coupled light through the first external port.
  • Receiving, from the first external port, the reflected polarized light corresponding to the polarized light, and polarizing the reflected polarized light and respectively injecting the reflected polarized light into the two-way emitting laser and it is pointed out that the polarization emitted by the bidirectional emitting laser The light is consistent with the polarization direction of the light injected into the bidirectional light emitting laser.
  • the two-way illuminating laser may specifically include a first waveguide, a second waveguide, a first port, and a second port, and the specific connection relationship is as follows: the first waveguide is connected to the first port. a second waveguide is coupled to the second port; the polarization beam splitting rotator includes a third waveguide and a fourth waveguide, the fourth waveguide is coupled to the first external port, wherein the first waveguide is coupled to the third waveguide, and the second waveguide is coupled to the fourth waveguide Waveguide connection.
  • the bidirectional light emitting laser is specifically configured to output first polarized light having a first polarization direction through a first port, and output second polarized light having a first polarization direction through a second port.
  • the first polarized light is output to the polarization beam splitting rotator through the first waveguide and the third waveguide
  • the second polarized light is output to the polarization beam splitting rotator through the second waveguide and the fourth waveguide.
  • the first polarized light is coupled to the fourth waveguide through the third waveguide, and converted into a third polarized light having a second polarization direction.
  • the first polarization direction and the second polarization direction are perpendicular to each other;
  • the polarized light and the third polarized light are output from the first external port through the fourth waveguide;
  • the polarization beam splitting rotator is further configured to receive, from the first external port, reflected polarized light having a wavelength of a target wavelength, the reflected polarized light being reflected back to the polarizing beam splitting rotator and being decomposed into the first polarized reflected light having the first polarization direction And a second polarized reflected light having a second polarization reflected light, wherein the first polarized reflected light is injected into the bidirectional light emitting laser through the fourth waveguide and the second waveguide, and the second polarized reflected light is coupled to the third through the fourth waveguide The waveguide is then injected into the bidirectional light emitting laser through the third waveguide and the first waveguide.
  • the first polarized light and the second polarized light are TE mode polarized light
  • the third polarized light is TM mode polarized light
  • the first polarized reflected light and the third polarized reflected light are TE mode polarized light
  • the second polarized reflected light is TM mode polarized light.
  • the third aspect of the embodiments of the present invention further provides an optical transmitter, comprising the optical reflective multiplexing chip, the M optical fibers, and the M laser transmitting chips according to the second aspect described above.
  • M is a positive integer and is greater than or equal to 1.
  • the first external port of the laser emitting chip and the third external port corresponding to the light reflection multiplexing chip are connected by corresponding optical fibers.
  • the present invention provides a light reflection multiplexing chip for solving the problem of high cost of a colorless optical transmitter based on the self-injection locking technology.
  • the optical transmitter in the embodiment of the present invention uses the above-mentioned laser emitting chip and the above-mentioned optical reflection multiplexing chip. Compared with the optical transmitter in the prior art, the optical transmitter in the present invention does not use a high-cost discrete device (such as Faraday rotators, AWG devices, etc.) are less expensive in practical applications.
  • FIG. 1 is a schematic structural view of an optical transmitter in the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a laser emitting chip according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an embodiment of a light reflection multiplexing chip according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of an optical transmitter according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a self-injection locking process of an optical transmitter according to an embodiment of the present invention.
  • the invention provides a light reflection multiplexing chip, a laser emitting chip and an optical transmitter, which are used for solving the problem of high cost of a colorless optical transmitter based on the self-injection locking technology.
  • FIG. 1 is a schematic structural diagram of an optical transmitter based on self-injection locking according to the present invention.
  • the transmitter mainly includes two integrated chips, one of which is a laser emitting chip, which is bidirectional.
  • the illuminating laser and the polarization splitting rotator (English name: polarization splitter-rotator, English abbreviation: PSR), the main function is to emit laser light and receive self-injection light, and the other is a light reflection multiplexing chip, which is composed of multiple PSRs.
  • a plurality of micro-ring resonators and a combiner are combined to realize wavelength selection, light reflection, and rotation of the polarization state of the light.
  • the main working principle is as follows: the laser emitting chip emits light and is input to the optical reflection multiplexing through the optical fiber. The chip selects a certain wavelength and reflects it, returning to the laser emitting chip to complete the self-injection locking process.
  • the two-way illuminating laser in the laser emitting chip may adopt a III-V hybrid integrated microring laser or a vertical cavity grating coupled laser, or may use other bidirectional luminescent lasers, as long as the laser emitting chip composed of the bidirectional laser emitter and the PSR can The function of emitting the laser light and accepting the self-injection light may be completed, and is not limited herein.
  • the PSR can be implemented by a waveguide type asymmetric directional coupler, or a two-dimensional planar waveguide grating, or other structural form of PSR, as long as the laser emitting chip composed of the PSR and the bidirectional laser emitter can perform the above functions. Yes, it is not limited here.
  • the microring resonator and the PSR in the light reflection multiplexing chip are not limited as long as the wavelength selection, the light reflection, and the rotation of the light polarization state can be realized.
  • the laser transmitter chip and the optical transmitter implemented by the light reflection multiplexing chip in the embodiment can solve the problem of high cost of the colorless optical transmitter based on the self-injection locking technology.
  • the laser emitting chip, the light reflecting multiplexing chip and the optical transmitter in the embodiments of the present invention are described in detail below:
  • the laser emitting chip in the embodiment of the present invention is described by using a III-V hybrid integrated microring laser in a bidirectional transmitting laser in a laser emitting chip.
  • the PSR can be described by using a waveguide type asymmetric directional coupler as an example.
  • 2 is a schematic structural view of a laser emitting chip 2 in the embodiment of the present invention.
  • the laser emitting chip 2 includes a III-V hybrid integrated microring laser 20, an asymmetric directional coupler 21, and an external port 22.
  • the III-V hybrid integrated microring laser includes a waveguide 200, a waveguide 201, a port 202 and a port 203, and a microring resonant cavity 204.
  • the asymmetric directional coupler 21 includes a waveguide 210 and a waveguide 211.
  • the specific connection relationship between the waveguide and the port is as follows: the waveguide 200 is connected to the port 202, the waveguide 201 is connected to the port 203, the waveguide 211 is connected to the external port 22, the waveguide 200 is connected to the waveguide 210, and the waveguide 201 is connected to the waveguide 211.
  • a III-V hybrid integrated micro-ring laser 20 the outer ring of the micro-ring resonant cavity 204 includes a P-doped region and an active region, and the inner ring includes an N-doped region.
  • the driving current is applied, the number of particles in the active region of the outer ring is reversed to generate a laser, and the laser is continuously enhanced in the microring resonator and continuously coupled into the nearby waveguide, that is, the III-V hybrid integrated microring Laser 20 is used to output TE mode polarized light through port 202 and port 203.
  • the TE mode polarized light outputted from the port 202 described above is output to the asymmetric directional coupler 21 through the waveguide 200 and the waveguide 210, and is coupled to the fourth waveguide 211 through the waveguide 210 to be converted into TM mode polarized light, that is, its polarization state rotation. At 90 degrees, the polarized light of the TM mode and the polarization direction of the TE mode polarized light are perpendicular to each other. And output from the external port 22 through the waveguide 211. On the other hand, the TE mode polarized light output from the port 203 described above is transmitted to the asymmetric directional coupler 21 through the waveguide 201 and the waveguide 211, and is output from the external port 22 through the waveguide 211.
  • the TE mode polarized light and the TM mode polarized light are mixed from the external port 22 into the asymmetric directional coupler 21, the TE mode polarized light is injected into the III-V hybrid integrated microring laser 20 through the waveguide 211 and the waveguide 201, TM The modulo polarized light is coupled to the waveguide 210 through the waveguide 211 and transmitted to the waveguide 200 through the waveguide 210.
  • the TM mode polarized light transmitted from the waveguide 210 has evolved into TE mode polarized light, that is, the polarization direction is rotated.
  • the III-V hybrid integrated micro-ring laser 20 is injected through the waveguide 200, that is, the light injected and outputted by the III-V hybrid integrated micro-ring laser 20 is TE-mode polarized light.
  • the embodiment of the present invention merely integrates the two into one chip to achieve a specific function. Therefore, the structure, the constituent materials, and the like which are not related to the embodiment of the present invention will not be described again in the embodiment of the present invention.
  • the light reflection multiplexing chip in the embodiment of the present invention is described by using a waveguide type asymmetric directional coupler as an example.
  • a light in the embodiment of the present invention is used.
  • Schematic diagram of the reflection multiplexing chip 3 the light reflection multiplexing chip 3 includes: a combiner, a second external port, N third external ports, N micro ring resonators, N asymmetric directional couplers, N
  • the first branch waveguide and the N second branch waveguides, N being a positive integer and greater than or equal to one.
  • the optically reflective chip has the same function as that of each micro-ring resonator, each of which is described herein for ease of understanding and description, only the waveguide 31, the waveguide 32, the asymmetric directional coupler 33, and the micro are described.
  • the functions realized by the loop resonator 34 and the external port 35 are connected, as shown in FIG. 3, the connection relationship is as follows:
  • the asymmetric directional coupler 33 includes a waveguide 330 and a waveguide 331.
  • the waveguide 330 is connected to the waveguide 31.
  • the waveguide 331 is connected to the waveguide 32.
  • the multiplexer 30 is connected to the waveguide 31, connected to the waveguide 32, and connected to the external port 36.
  • the asymmetric directional coupler 33 is configured to receive light of any polarization state from the port 35 through the waveguide 330, and is decomposed into TE mode polarized light A in and TM mode polarized light B when the arbitrarily polarized light passes through the asymmetric directional coupler 33.
  • the polarization directions of the TE mode polarized light A in and the TM mode polarized light B in are perpendicular to each other, that is, 90 degrees out of phase.
  • the TE mode polarized light A in is transmitted to the waveguide 31 through the waveguide 330, and then when the light of the wavelength ⁇ of the TE mode polarized light is aligned with the resonance peak of the microring resonator 34, the light of the wavelength ⁇ is coupled into the light.
  • the microring resonator 32 After entering the microring resonator 32, a portion of the light is reflected from the waveguide 32 and the waveguide 331 back to the asymmetric directional coupler 33. After entering the asymmetric directional coupler 33, this portion of the light is coupled from the waveguide 331 to the waveguide.
  • Multi-channel summarization completes the summing of the light entering the combiner 30 by the N channels, and outputs the combined light from the external port 36.
  • the TM mode polarized light B in is coupled from the waveguide 330 into the waveguide 331 , evolves into TE mode polarized light, and is transmitted to the waveguide 32 through the waveguide, and the wavelength ⁇ is selected through the microring resonator 34. Similar processes to those described above, i.e., after the completion of a selected wavelength ⁇ , wherein a portion of the light passes through the waveguide 31 and a waveguide in a TE 330 mode B out 35 reflected polarized light output from the external port, the other part of the light enters the multiplexer 30.
  • the light reflecting laser chip performs three functions of mode selection, reflection of the input light, and rotation of the polarization state by 90 degrees.
  • an optical transmitter in the embodiment of the present invention includes: a laser emitting chip 40, an optical fiber 41, and a light reflection multiplexing chip 42.
  • the laser emitting chip 40 includes a bidirectional emitting laser 400.
  • the light reflection multiplexing chip 42 includes a combiner 420, an external port 421, and N second An external port 422, N microring resonators 423, N polarization beam splitting rotators 424, N waveguides 425 and N waveguides 426, N being a positive integer and greater than or equal to 1, N being greater than or equal to M, combining
  • the 420 is connected to the waveguide 425, connected to the waveguide 426, and connected to the external port 421.
  • the external port 402 is connected to the optical port 41 of the external port 422.
  • the two-way illuminating laser 400 is configured to output polarized light, and the polarized light is output to the polarization beam splitting rotator 401, and then output to the corresponding polarization beam splitting rotator 424 through the external port 402 through the polarization beam splitting rotator 401.
  • the polarized light is transmitted to the waveguide 425 and the waveguide 426, and the corresponding microring resonator 423 locks the target polarized light having the wavelength of the target wavelength in the polarized light, and is outputted through the combiner 420.
  • the external port 421 is part of the light of the target polarized light, and the other part of the light is reflected back to the vibration beam splitter 424 as reflected light, and is reflected back to the polarization beam splitting rotator 401 through the corresponding external port 422, and the reflected light passes through the polarization beam splitting rotator. After 401 is injected into the bidirectional luminescent laser 400 to complete the self-injection locking of the bidirectional luminescent laser 400.
  • the optical transmitter in the embodiment of the present invention is implemented by using the above-mentioned laser emitting chip and the above-mentioned light reflecting multiplexing chip, and the optical transmitter transmits multi-wavelength polarized light through a laser transmitting chip, and transmits the optical reflection multiplexing chip through the optical fiber after transmission.
  • a wavelength selection of the polarized light is performed and the polarized light is reflected back to the laser emitting chip, and finally the optical transmitter achieves locking at a specific wavelength and locks to operate at the wavelength.
  • the optical transmitters of the present invention do not use costly discrete devices such as, for example, Faraday rotators, AWG devices, etc., and are less expensive in practical applications.
  • Figure a in Figure 5 is the output light spectrum of the laser at port 1 and port 2 when no reflected light is injected into the III-V hybrid integrated microring laser. At this time, each light in the III-V hybrid integrated microring laser The competition between the longitudinal modes is very strong, and the side mode suppression ratio is very poor. Since the III-V hybrid integrated micro-ring laser is a two-way illuminating laser, port 1 and port 2 are symmetrical. For convenience of description and understanding, the port 1 illuminating is first analyzed. In the laser emitting chip, the TE mode polarized light output from port 1 is input to the asymmetric directional coupler 1 via port 3, and evolves to a TM mode polarized light output at port 5.
  • the original TM mode polarized light After transmission through the optical fiber, the original TM mode polarized light has become an arbitrary polarization state and is input to the light reflection multiplexing chip. Therefore, at port 6, the input light is decomposed into two components, TE mode polarized light and TM mode polarized light. After the asymmetric directional coupler 2, the TE mode polarized light is input into the waveguide 1 from port 7, TM mode. The polarized light evolves into TE mode polarized light and is input to the waveguide 2 by the port 8. When the wavelength ⁇ 1 of the light transmitted in the two waveguides is aligned with the resonance peak of the microring resonator, the longitudinal mode is selected into the microring. The resonant cavity is shown in Figure b.
  • the polarization state of the reflected light itself in the optical fiber is continuously rotated, but the polarization state of the laser output light is always accurate at any point on the optical fiber. Keep a difference of 90 degrees. Therefore, when the reflected light reaches the laser emitting chip port 5, the polarization state thereof is perpendicular to the TM mode polarization state of the original output, and becomes a TE mode polarization state. The reflected light of the TE polarization state is output from the port 4 via the PSR and injected into the two-way illuminating laser. It should be pointed out that the above process is only a dynamic process that finally completes the self-injection locking.
  • the wavelength of the final III-V hybrid integrated microring laser is locked to the ⁇ 1 wavelength filtered by the microring resonator, as shown in Figure d.
  • the III-V hybrid integrated micro-ring laser emits light similarly from the port 2, except that the output light of the port 5 is TE mode polarized light, and the corresponding reflected light is TM mode polarized light. .
  • port 1 and port 2 simultaneously emit light and receive reflection injection to complete self-injection locking. As shown in Figure e, after the injection lock enters the steady state, the output light is output to the combiner, and after completing the integration with other channels, it is finally output through the port 10.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (English full name: Read-Only Memory, English abbreviation: ROM) or a random storage memory (English full name: Random Access, Memory, English abbreviation: RAM) and so on.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

L'invention concerne une puce de multiplexeur optique réfléchissante (42), une puce d'émetteur laser (40) et un émetteur optique (4), étant utilisés de façon à résoudre le problème du coût élevé de l'émetteur optique incolore actuel (4) sur la base de la technologie de verrouillage par auto-injection. L'émetteur optique (4) comprend : une puce d'émetteur laser (40), une fibre optique (41) et une puce de multiplexeur optique réfléchissante (42). La puce d'émetteur laser (40) comprend : un laser électroluminescent bidirectionnel (400), un rotateur de séparation de faisceau de polarisation (401) et un premier port externe (402) ; la puce de multiplexeur optique réfléchissante (42) comprend un combinateur (420), un deuxième port externe (421), N troisième(s) port(s) externe(s) (422), N micro-cavité(s) résonante(s) en anneau (423), N rotateur(s) de séparation de faisceau de polarisation (424), N premier(s) guide(s) d'ondes de dérivation (425) et N second(s) guide(s) d'ondes de dérivation (426), N étant un entier positif supérieur ou égal à un. Le combinateur (420) est connecté aux premiers guides d'ondes de dérivation (425), aux seconds guides d'ondes de dérivation (426) et au deuxième port externe (421), et le premier port externe (402) est connecté aux troisièmes ports externes (422) au moyen de la fibre optique (41).
PCT/CN2016/073152 2016-02-02 2016-02-02 Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique Ceased WO2017132820A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2016/073152 WO2017132820A1 (fr) 2016-02-02 2016-02-02 Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique
CN201680079095.8A CN108476065B (zh) 2016-02-02 2016-02-02 一种光反射复用芯片、激光发射芯片以及光发射机
EP16888646.3A EP3402094B1 (fr) 2016-02-02 2016-02-02 Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique
US16/051,889 US10841012B2 (en) 2016-02-02 2018-08-01 Optical reflective multiplexer chip, laser transmitter chip, and optical transmitter

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PCT/CN2016/073152 WO2017132820A1 (fr) 2016-02-02 2016-02-02 Puce de multiplexeur optique réfléchissante, puce d'émetteur laser, et émetteur optique

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US16/051,889 Continuation US10841012B2 (en) 2016-02-02 2018-08-01 Optical reflective multiplexer chip, laser transmitter chip, and optical transmitter

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WO2017132820A1 true WO2017132820A1 (fr) 2017-08-10

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